What is mechanical analysis of walking? Describe various steps of it.
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Answer:
The mechanical analysis of walking helps to improve the techniques of players and it also instrument for better performance. Stance phase is the Period, when the foot is on the ground. It is considered that it consists of maximum percentage of walking cycle. For the part of stance phase
Mechanical analysis of walking:
Walking in humans can be defined as a form of upright bipedal locomotion or gait in which atleast one foot is always in contact with the ground. It is a cyclic activity involving the alternating action of the legs to advance the body forward. As a person walks. each leg alternates between periods when the foot is in contact with the ground and when it is moving forward through the air.
The period during which the foot contact the ground is termed as stance phase or stance.
When the foot is not in contact the leg is moving forward we call it swing phase.
When we begin walking the first contact on the surface is called initial contact. The stance phase continues until the foot leaves the ground in an event termed take off. Take off initiates the swing phase.
a Stance Phase: It is composed of heel strike foot touches the surface flexion at the knee and toe off. The duration of this phase is approx. 60% of walking circle. Here aim is to use the least amount of energy possible foot itself act as shock absorber for dispersing the force of the body as it lands and provide a way to propel the body forward. The shock absorption enables the body to maintain the balance. It includes heel strike early flatfoot late flat foot heel rise and toe off.
b Swing Phase: The swing phase is composed of toe clearance and leg swing. The duration of this phase is approx. 40% of walking cycle. The hip flexors and knee extensors facilitate the action of heel for rising high.